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Old 10-21-2008, 10:45 AM   #1
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noisy hydronic heat


Hi,
I have hydronic baseboard heaters in a second floor addition. The PEX tubing runs in the floor joist and has been causing a lot of noise. I can hear it on the first floor and the noise is very annoying in the second floor bedrooms. Is there anything I can do short of pulling up the carpet and subfloor to cushion the PEX?

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Old 10-21-2008, 10:52 AM   #2
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noisy hydronic heat


Has all of the air been bled? Radiant heat is usually quiet unless there is air in the system.

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Old 10-21-2008, 10:54 AM   #3
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noisy hydronic heat


Yes, i think so. It sounds more like a ticking for a minute or so when the pump starts up.
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Old 10-21-2008, 11:41 AM   #4
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noisy hydronic heat


Make sure that the air is bled out of the system and that you have an air scoop in the system.

If you are absolutely positive that is not the case then you have an expansion/contraction problem and that could be a big issue to fix.

Give me some idea about your hydronic system.

Who put it in? How long ago? Was it put in when the house was built? Is this problem new or has it always been this way? Is it getting worse?
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Old 10-21-2008, 11:45 AM   #5
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noisy hydronic heat


The ticking might be the reflector plates expanding and contracting. There's not much you can do about that now.
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Old 10-22-2008, 03:01 PM   #6
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OK thanks

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